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Related to haustorium: Appressorium, haustorial


n. pl. haus·to·ri·a (hô-stôr′ē-ə)
A specialized structure of a parasitic fungus or plant, used to absorb nutrients and water from the host plant.

[New Latin haustōrium, from Latin haustus, a drawing in, absorption, from past participle of haurīre, to draw up.]

haus·to′ri·al adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -ria (-rɪə)
(Plant Pathology) the organ of a parasitic plant that penetrates the host tissues and absorbs food and water from them
[C19: from New Latin, from Late Latin haustor a water-drawer; see haustellum]
hausˈtorial adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(hɔˈstɔr i əm, -ˈstoʊr-)

n., pl. haus•to•ri•a (hɔˈstɔr i ə, -ˈstoʊr-)
1. a projection from the hypha of a fungus into the organic matter from which it absorbs nutrients.
2. the penetrating feeding organ of certain parasites.
[1870–75; < New Latin, = Latin haus-, variant s. of haurīre to scoop up, draw + -tōrium -tory2]
haus•to′ri•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.haustorium - a root-like attachment in parasitic plants that penetrates and obtains food from the host
plant process, enation - a natural projection or outgrowth from a plant body or organ
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In series, the pathogen sporangium or zoospore has to be formed followed by cyst formation, then germination of the cyst/spore to form appressorium which, enhances penetration unto host and infection vesicle, then intercellular hyphal growth and haustorium formation and initiation of sporulation (Huitema et al., 2004; Nowicki et al., 2013).
After fruit maturation, seed germination begins, when the embryo undergoes dilation, producing a whitish mass (haustorium), which around five months occupies the entire internal seed cavity (FREMOND et al., 1975), digesting the albumen to nourish the developing seedling.
Parasitism and haustorium anatomy of Krameria lappacea (Dombey) Burdet & BB Simpson (Krameriaceae), an endangered medicinal plant from the Andean deserts.
With respect to the effects of bacterial cultures or filtrates on haustorium initiation, results displayed that B.
These cells were only believed to exist in the haustorium of the root hemiparasites but in 1984, the first report of these elements in the stem and haustorium of aerial hemiparasitic plants was recorded [12].
When a dodder seedling brushes against tasty prey, a haustorium disk forms and pushes out from the dodder stem with a fast-growing point.
Other parasitic plants tap directly into their host plants through the use of a modified root tip known as a haustorium. The haustorium penetrates the roots of the host plant, intertwining and interconnecting with them to absorb water and nutrients (mostly carbon).
DMBQ (10 and 20 pM), applied to Striga germilings resulting from seeds conditioned in water displayed 64 and 71 % haustorium initiation, respectively (Table 5).
Series of laboratory and green house experiments were undertaken to investigate the effects of seed priming and salinity on germination growth of sorghum and haustorium initiation of Striga hermonthica.
In an ecological context, epiphytism is an interaction between plants in which the epiphytic plant is dependent on the substrate supplied by the host plant (phorophyte), while obtaining nutrients directly from atmospheric moisture, without emitting haustorium structures [5].